Vacuum-cleaner.



' c. DEfMATTIA. VACUUM CLEANER.

APPLICATION FILED JULY 7, 1911.

1,029,916. Patented June 18, 1912.

Witesse Inventor by r I G Attorney pnrrun STATES PATENT onnrcn.

CONSTAN'i bIE MATTIA, or nn'rnoi'r, MICHIGAN, ASSIGNOR T REDcnoss'vAcUUM CLEANER COMPANY, or DETROIT, MICHIGAN.

VACUUM-CLEANER.

Specification of Letters Patent.

Patented June 18, 1912.

Application filed July 7, 1911. Serial No. 637,280.

is a specification.

This invention relates to an improvement 1n vacuum cleaners.

The primary ob ect of the lnvention is to provide a nozzle which willaccommodate.

itselfto the surface to be cleaned, said nozzle having a flexibleconnection with the suction chamber, there being suitable means arrangedwithin said suction chamber to rebeive the dust which is collected, saiddust receiving means being conveniently removed from said chamber.

In the drawlngs :-,F1gure 1 1s a top plan view partly in section of thecleaner. Fig

2 is a side elevation partly in section. Fig. 3 is a front-elevation.Fig. 4 'is a detail view, showing the manner of supporting the nozzle.

In the drawings, designatesthe suction chamber, which is arrangedto'house a piston 11. This piston is mounted on the forked extension 12of a piston rod 14 which extends through the restricted neck 15 of thecasing and which is reciprocated by means ,of the levers 16 which arepivotally supported by the bifurcated lugs 17 arranged on the casing,the levers 16 being connected to .the piston rod 14 by means of links18-, the levers being moved toward and away from each other toreciprocate said rod. The plston 11 is provided with a central aperture19 which receives the screw threaded end of a tube 20, a valve 21 whichis secured to the piston between the forks of the extension 12 normallyclosing the end of said tube. Secured to the casing 10 is asubstantially cylindrical casing 21' said casing being secured adjacentthe .edge of the wall 22 of the casing 10. This wall 22 is provided witha central aperture 23 which receives thetube 20, a boss 24 being formedonthe plate or wall 22, said boss embracing thetube, guiding the same inits reciprocatory movement.

The casing 21' is bolted to the plate 22 of. the casing ilO'an'd isadapted to contam a.

dust receptacle 25 which is preferably in the nature of a porous bag.This porous bag 25 has its open end 26 supported between the inwardlybent ends 27 of the casing 20 and a cap 28 which embraces the. small endof the tapered casing 20, a wire or other suitable member being securedwithin the neck of the bag in order that the same may beheld againstdisplacement. The'cap 28 is provided with the restricted extension 30tube 31, the other end of said tube embracing an extension 32 of anozzle 33. The nozzle 33 is supported by a plurality of'arms 34 whichare secured to the cap 28. These arms 34 terminate in the angularextensions 35 which form bearings for rollers 36-, which rollers supportthe lower end of the device, facilitating its movement across thesurface tobe cleaned. The inward extensions 35 extend beyond therollers-36 and enter vertical slots 37 in the upturned ends or uprightsvided with the longitudinal intake 38.

In operation the handles 16 are manipulated to create suction, withinthe chamber 10, the valves 41 and-42 being closed on the down stroke,airbeing expelled through the valve and through the 'valve 21in theupper compartment of the chamber, the air entering through the nozzle 33either being conducted to the chamber by means of the tube-'20 or thevalve 42, the tubebeing utilized for this purpose on the down stroke,and the valve on the up stroke. It will be noted by this constructionthat a constant suction is obtained with'the use of a single piston.'Attention is also called to the manner in which the dust receiving bagis supported within the casing 21 and the factthat the same may beconveniently removed inserted in lieu thereof. Attention is also calledto the nozzle 33 and the manner in which the same is supported, thisnozzle being'supported in a manner which permits the same tomoverelative to its support. WVhat is claimed is A vacuum cleanercomprising a pump, a

ing with said pump, a cap forming a removable closure for the lowenendof said 37 of the nozzle 33. This nozzle is pro filter casing, a pair ofspaced arms exten'd-.

which extends within one end of a flexible when it becomes filled and anempty bag filter casing connected to and communicat ing from said cap,their' lov ver ends being In testimony that 1 ciuim the foregoing asinwardly extended, a roller journaled on my own, I have hereto aflixedmy signature each of said ends, a nozzle, and a flexible in the presenceof twb witnesses'.'

pipe connecting said nozzle with said cap, v CONSTANT DE MATTIA. saidnozzle being provided with uprights Witnessesi having slots whichreceive the ends of said i M. 'C. BRIGHT,

arms. y A. M. BRIcgHT,

